Chapter 20 Succession and Stability In 1794, Captain George
... new substrate. Primary succession occurs on newly exposed geological substrates not significantly modified by organisms. Secondary succession occurs in areas where disturbance destroys a community without destroying the soil. Succession generally ends with a climax community whose populations remain ...
... new substrate. Primary succession occurs on newly exposed geological substrates not significantly modified by organisms. Secondary succession occurs in areas where disturbance destroys a community without destroying the soil. Succession generally ends with a climax community whose populations remain ...
Ecology - Citrus College
... • Occurs in disturbed habitats where some soil, and perhaps some organisms, still remain after the disturbance. disturbance • Example: 1. Fires 2. Floods 3. Drought ...
... • Occurs in disturbed habitats where some soil, and perhaps some organisms, still remain after the disturbance. disturbance • Example: 1. Fires 2. Floods 3. Drought ...
Review Ecosystems
... organisms that migrate into the area must contribute to soil formation before other, larger plants can move in. Weathering begins breaking down the bare rock into smaller particles, and then pioneer species can move in. Lichens are a good example of a pioneer species. Lichens attach themselves to ro ...
... organisms that migrate into the area must contribute to soil formation before other, larger plants can move in. Weathering begins breaking down the bare rock into smaller particles, and then pioneer species can move in. Lichens are a good example of a pioneer species. Lichens attach themselves to ro ...
Community ecology and dynamics
... 1.Changing plant and animal communities, ecosystems, and landscapes through time following the creation of new substrates or following disturbance, usually directional changes. 2.Primary succession – occurs on newly formed surfaces such as volcanic lava flows, areas recently deglaciated (glacial for ...
... 1.Changing plant and animal communities, ecosystems, and landscapes through time following the creation of new substrates or following disturbance, usually directional changes. 2.Primary succession – occurs on newly formed surfaces such as volcanic lava flows, areas recently deglaciated (glacial for ...
Chapter 35:
... The kind of succession where there is no preexisting soil, like after a volcanic eruption or a glacier melt. The kind of succession that take place when a disturbance leaves the soil intact, as in clear-cutting or forest fire. What are PIONEER organisms? ...
... The kind of succession where there is no preexisting soil, like after a volcanic eruption or a glacier melt. The kind of succession that take place when a disturbance leaves the soil intact, as in clear-cutting or forest fire. What are PIONEER organisms? ...
Ecology Part 3
... which one community of organisms replaces another. This happens after some sort of change- volcano, fire, tornado, etc has disturbed the environment. As each community is established, the environment is modified and change making it possible for another community to become established. ...
... which one community of organisms replaces another. This happens after some sort of change- volcano, fire, tornado, etc has disturbed the environment. As each community is established, the environment is modified and change making it possible for another community to become established. ...
Net production
... The total solar energy received by a grassland is 5 x 105 kJ m-2 y1. The net production of the grassland is 6 x 102 kJ m-2 y-1. The total energy passed onto the primary consumers is 60 kJ m-2 y-1. Only 10% of this energy is passed onto its secondary consumers. b) Construct a pyramid of energy for th ...
... The total solar energy received by a grassland is 5 x 105 kJ m-2 y1. The net production of the grassland is 6 x 102 kJ m-2 y-1. The total energy passed onto the primary consumers is 60 kJ m-2 y-1. Only 10% of this energy is passed onto its secondary consumers. b) Construct a pyramid of energy for th ...
Microsoft Word - Activity4.doc
... ______ Two species of finches that live on two different islands have similar beaks, both suited for using the same food supply (seeds). On a third island, they coexist, but due to evolution, the beak of each bird species is different. This minimizes competition by enabling each finch to feed on see ...
... ______ Two species of finches that live on two different islands have similar beaks, both suited for using the same food supply (seeds). On a third island, they coexist, but due to evolution, the beak of each bird species is different. This minimizes competition by enabling each finch to feed on see ...
PGS:
... Ecological Succession – Change in community composition due to time and disturbance. A. Two types can occur within environments 1. Primary Succession – This is “starting from scratch” using pioneer species – lichens and mosses. a. Pioneers make the dirt needed for the plants & birds bring seeds in t ...
... Ecological Succession – Change in community composition due to time and disturbance. A. Two types can occur within environments 1. Primary Succession – This is “starting from scratch” using pioneer species – lichens and mosses. a. Pioneers make the dirt needed for the plants & birds bring seeds in t ...
EcolAspectsEPM2
... Ecological Niche Concept Set of resources that provides a species with all of its requirements for existence and reproduction Individual requisites necessary for survival Population requisites - broad vs. narrow Limit to number of species that can occupy an area (K). ...
... Ecological Niche Concept Set of resources that provides a species with all of its requirements for existence and reproduction Individual requisites necessary for survival Population requisites - broad vs. narrow Limit to number of species that can occupy an area (K). ...
Document
... land annually to increase crop production. Superphosphate- can cause oligotrophication of water sources by ...
... land annually to increase crop production. Superphosphate- can cause oligotrophication of water sources by ...
Chapter 5 Notes
... Factors that affect the rate of succession Facilitation: • one set of species makes area makes area suitable for following species, less for themselves (mosses/lichens and grasses) ...
... Factors that affect the rate of succession Facilitation: • one set of species makes area makes area suitable for following species, less for themselves (mosses/lichens and grasses) ...
a17 Communities
... 3. Explain how competition can lead to competitive exclusion. 4. Explain how resource partitioning can allow several species to coexist in the same habitat. 5. Describe how predator and prey populations are linked and why they rise and fall together in cycles. 6. Define the term “coevolution” with r ...
... 3. Explain how competition can lead to competitive exclusion. 4. Explain how resource partitioning can allow several species to coexist in the same habitat. 5. Describe how predator and prey populations are linked and why they rise and fall together in cycles. 6. Define the term “coevolution” with r ...
Population Dynamics
... barnacles; whale not harmed nor helped, barnacles have more access to food ...
... barnacles; whale not harmed nor helped, barnacles have more access to food ...
Chapter 1 Section 2: Unifying Themes of Biology
... _________ factors _________ factors An ecological _________ includes all of the factors that a species needs to _______, stay__________, and ______________. ____________ ____________ conditions ____________ B. ____________ availability gives ___________ to a community. Species can ____ ...
... _________ factors _________ factors An ecological _________ includes all of the factors that a species needs to _______, stay__________, and ______________. ____________ ____________ conditions ____________ B. ____________ availability gives ___________ to a community. Species can ____ ...
Ecology Part 3
... given area. One should also looks at relative numbers of each species as well. This factor is called species richness. In general, the greater the species diversity of an ecosystem, the more stable the ecosystem. An ecosystem with fewer species may be more susceptible to damage from some sort of dis ...
... given area. One should also looks at relative numbers of each species as well. This factor is called species richness. In general, the greater the species diversity of an ecosystem, the more stable the ecosystem. An ecosystem with fewer species may be more susceptible to damage from some sort of dis ...
ecology - MrsStowSupport
... Biosphere-portions of the planet in which all of life exists Biome- a group of ecosystem that have the same climate and similar dominant communities Deciduous – forest with leafy trees Coniferous – forest with needle type trees ( Pine Trees) ...
... Biosphere-portions of the planet in which all of life exists Biome- a group of ecosystem that have the same climate and similar dominant communities Deciduous – forest with leafy trees Coniferous – forest with needle type trees ( Pine Trees) ...
Advanced Higher Biology – Environmental Biology
... primary – starts off with no plant species, or secondary – plants species previously existed. Allogenic succession – results from environmental change cause by, usually, climate or climate related factors. Degradative succession occurs as a result of decomposition causing a change from organic to in ...
... primary – starts off with no plant species, or secondary – plants species previously existed. Allogenic succession – results from environmental change cause by, usually, climate or climate related factors. Degradative succession occurs as a result of decomposition causing a change from organic to in ...
Chapter 5
... rocks, cliffs, newly formed islands, sand dunes, occurs in areas where there is no soil ...
... rocks, cliffs, newly formed islands, sand dunes, occurs in areas where there is no soil ...
Community Ecology Group Project
... 1. Explain what would happen if all of the primary consumers became ecologically extinct. 2. Describe what would happen to the ecosystem if the keystone species were removed. 3. Using the acronym HIPPO, choose two of the letters and describe a specific activity and the impact to your ecosystem. How ...
... 1. Explain what would happen if all of the primary consumers became ecologically extinct. 2. Describe what would happen to the ecosystem if the keystone species were removed. 3. Using the acronym HIPPO, choose two of the letters and describe a specific activity and the impact to your ecosystem. How ...
ecology 3 week assessment review
... The top pyramid, each level supports a lesser amount of biomass. Bottom pyramid, less phytoplankton can support a larger amount of zooplankton. ...
... The top pyramid, each level supports a lesser amount of biomass. Bottom pyramid, less phytoplankton can support a larger amount of zooplankton. ...
Intro to Ecology
... have adaptations to efficiently capture prey, whereas prey species have adaptations to avoid capture. Adaptations in Animal Prey Mimicry is an adaptation in which a species gains an advantage by resembling another species or object. Adaptations in Plant Prey Many plants produce secondary compo ...
... have adaptations to efficiently capture prey, whereas prey species have adaptations to avoid capture. Adaptations in Animal Prey Mimicry is an adaptation in which a species gains an advantage by resembling another species or object. Adaptations in Plant Prey Many plants produce secondary compo ...
Section 4-1 The Role of Climate (pages 87
... 6. When does competition occur? __________________________________________________ 7. What is a resource? ___________________________________________________________ 8. What is often the result of direct competition in nature? ______________________________ 9. What is the competitive exclusion princ ...
... 6. When does competition occur? __________________________________________________ 7. What is a resource? ___________________________________________________________ 8. What is often the result of direct competition in nature? ______________________________ 9. What is the competitive exclusion princ ...
Ecological succession
Ecological succession is the observed process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction.The community begins with relatively few pioneering plants and animals and develops through increasing complexity until it becomes stable or self-perpetuating as a climax community. The ʺengineʺ of succession, the cause of ecosystem change, is the impact of established species upon their own environments. A consequence of living is the sometimes subtle and sometimes overt alteration of one's own environment.It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat. Succession may be initiated either by formation of new, unoccupied habitat, such as from a lava flow or a severe landslide, or by some form of disturbance of a community, such as from a fire, severe windthrow, or logging. Succession that begins in new habitats, uninfluenced by pre-existing communities is called primary succession, whereas succession that follows disruption of a pre-existing community is called secondary succession.Succession was among the first theories advanced in ecology. The study of succession remains at the core of ecological science. Ecological succession was first documented in the Indiana Dunes of Northwest Indiana which led to efforts to preserve the Indiana Dunes. Exhibits on ecological succession are displayed in the Hour Glass, a museum in Ogden Dunes.